public class Example7_2 {

   public static void main(String args[]) {

       ShowBoard board=new ShowBoard();

       board.showMess(new OutputEnglish());  //向参数传递OutputAlphabet的子类对象

       board.showMess(new OutputAlphabet()  

                                                            //向参数传递OutputAlphabet的匿名子类对象

                       {  public void output() 

                          {  for(char c='α';c<='ω';c++)  //输出希腊字母

                               System.out.printf("%3c",c); 

                          }  

                       }

                     );

   } 

}
